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Yeast Genome Editing Services

CRISPR/Cas9 Genome Editing in Saccharomyces cerevisiae

Precise, markerless modifications in model and industrial yeast strains for basic research and metabolic engineering applications.

  • Targeted knockouts, point mutations, and sequence insertions
  • Custom guide RNA and repair template design
  • Sanger sequencing verification of edits

Why Choose Our S. cerevisiae Editing Services?

Leverage a streamlined CRISPR/Cas9 platform optimized for efficient homologous recombination in Saccharomyces cerevisiae. Our experienced team delivers verified edited clones with clear documentation and flexible project scoping to meet your research goals.

  • Experienced yeast engineering team
  • Flexible editing strategies for multi-allelic and polyploid strains
  • Comprehensive molecular QC included
Custom Design
Sanger Verified
Scalable from Single Clone to Library
Our Approach

Streamlined CRISPR/Cas9 Workflow for S. cerevisiae

From target design to verified clones — a focused service built for yeast biology and your project requirements.

Guide RNA & Donor Design

We design and synthesize custom guide RNAs and repair templates tailored to your target locus. In silico off-target assessment is performed to minimize unintended edits, and homology arms are optimized for homologous recombination in S. cerevisiae.

  • SgRNA design with high-specificity scoring
  • Homology arm design for efficient HR
  • Off-target prediction report included

Transformation & Screening

High-efficiency transformation (lithium acetate or electroporation) introduces Cas9, sgRNA, and donor template. Edited clones are selected and screened by colony PCR and Sanger sequencing to confirm the intended modification.

  • Optimized transformation protocol for your strain
  • Colony PCR for initial screening
  • Sanger confirmation of edits with alignment

Custom Strains Accepted

Projects can be performed in common lab strains (e.g., BY4741, W303) or industrial strains, with compatibility assessed during the design phase.

Multi-allelic Editing Capability

For polyploid strains, we can target multiple alleles in parallel using tailored sgRNA and screening strategies; scope defined per project.

Scalable Project Scope

From single-gene knockouts to multi-locus modifications or library-scale editing — project size and throughput are scoped during consultation.

Deliverables

What You Receive

Each project is documented with a clear handoff package to support downstream use and publication.

For Each Target

  • Verified edited yeast clones (quantity as scoped)
  • Purified genomic DNA from edited clones
  • Sanger sequencing files (AB1 +.seq) for each clone
  • Sequencing alignment report showing edit vs. parent

Project Documentation

  • Experimental design summary
  • Guide RNA and donor template sequences
  • QC data (colony PCR gel images, sequencing chromatograms)
  • Final report with annotated variants
Service Scope

Customizable Parameters

Projects are scoped per target and strain.

Parameter Typical project scope
Target Loci Up to 3 loci per project (as scoped); single or multi-locus editing
Strain Background Common lab strains (e.g., BY4741, W303) and industrial strains; compatibility assessed
Edit Type Knockout (disruption or full ORF deletion), point mutation, small insertion, tag replacement
Guide RNA Design Scoped per project after consultation
Donor Template Scoped per project after consultation
Clone Screening Depth Scoped per project after consultation
Typical Turnaround Scoped per project after consultation
Workflow

How It Works

A five-step process from consultation to verified edited clones.

Project Consultation and Target Design

We review your target sequence, strain background, and desired edit. A detailed strategy is proposed including guide RNA and donor template design.

Guide RNA and Donor Construction

Custom sgRNA expression cassettes and repair templates are synthesized and cloned into yeast-optimized vectors. Quality control by sequencing ensures correct construction.

Yeast Transformation

Cas9, sgRNA, and donor are delivered into S. cerevisiae via optimized transformation (lithium acetate or electroporation). Cells are plated on selective media to isolate transformants.

Screening and Molecular Validation

Putative edited clones are screened by colony PCR. Purified PCR products are subjected to Sanger sequencing for confirmation of the intended edit and flanking regions.

Documentation and Handoff

Verified clones are archived as glycerol stocks. A project report including methods, QC, and datasets including sequencing data and analysis is provided. Remaining materials are shipped or stored per agreement.

Applications

Gene Function and Pathway Analysis

Knockout and point mutation libraries enable systematic investigation of gene function, genetic interactions, and cellular pathways in a tractable model organism.

  • Single-gene knockout for functional studies
  • Point mutation for structure-function analysis
  • Tag insertion for protein localization

Pathway Optimization and Metabolite Production

Precise genomic modifications allow rewiring of metabolic pathways to evaluate production of biofuels, chemicals, and value-added compounds in yeast cell factories.

  • Gene deletion to eliminate competing pathways
  • Gene insertion for heterologous pathways
  • Promoter engineering for tunable expression

Design and Construction of Synthetic Circuits

Modular genome editing enables assembly of synthetic gene circuits, integration of biosynthetic clusters, and creation of chassis strains with defined genetic backgrounds.

  • Multi-locus integration for pathway assembly
  • Integration into defined genomic loci
  • Marker recycling for iterative engineering
FAQ

Frequently Asked Questions

Common questions about our S. cerevisiae genome editing service.

  • We routinely perform precise knockouts (disruption or full ORF deletion), point mutations, small insertions (e.g., epitope tags), and sequence replacements. The editing strategy is designed per project to evaluate success using homologous recombination with a custom donor template. More complex edits such as large deletions or integrations can be scoped as needed.

  • Every project includes colony PCR screening of candidate clones followed by Sanger sequencing of the edited region and flanking boundaries to confirm the intended modification. A sequencing alignment comparing the edited sequence to the parent strain is provided. Off-target assessment is performed in silico during guide RNA design, and optional targeted amplicon sequencing can be added by scope.

  • Yes, we have experience with a variety of laboratory and industrial Saccharomyces cerevisiae strains. Polyploid and aneuploid strains require additional screening to edit all alleles; we will discuss the strategy and expected success rate during the design phase. Custom transformation optimization may be applied as needed.

  • You provide the target gene name or sequence (or genomic coordinates), the desired edit type, and the strain background. For knock-ins, please provide the sequence to be inserted or the tag to be added. Our team will then propose a detailed strategy including guide RNA and donor design for your review before work begins.

Scientific Literature

References

  1. Laughery MF, Hunter T, Brown A, et al. New vectors for simple and streamlined CRISPR-Cas9 genome editing in Saccharomyces cerevisiae. Yeast (Chichester, England). 2015;32(12):711-20. View on PubMed
  2. Nishimura A, Tanahashi R, Oi T, et al. Plasmid-free CRISPR/Cas9 genome editing in Saccharomyces cerevisiae. Bioscience, biotechnology, and biochemistry. 2023;87(4):458-462. View on PubMed
  3. Meng J, Qiu Y, Shi S. CRISPR/Cas9 Systems for the Development of Saccharomyces cerevisiae Cell Factories. Frontiers in bioengineering and biotechnology. 2020;8:594347. View on PubMed
  4. Singh R, Chandel S, Ghosh A, et al. Easy efficient HDR-based targeted knock-in in Saccharomyces cerevisiae genome using CRISPR-Cas9 system. Bioengineered. 2022;13(6):14857-14871. View on PubMed

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